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Apparatus for decanting supernatant liquid contained in a clarifier

A technology of clarifier and clear liquid, which is applied in the direction of feeding/discharging devices, instruments, liquid level control, etc. of the settling tank, which can solve problems such as controller damage, and achieve low complexity and robustness in manufacturing and assembly Good, simple structure effect

Active Publication Date: 2015-12-09
INVENT UMWELT & VERFAHRENSTECHNIK AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the event of a broken cable this could also cause damage to the controller

Method used

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  • Apparatus for decanting supernatant liquid contained in a clarifier
  • Apparatus for decanting supernatant liquid contained in a clarifier
  • Apparatus for decanting supernatant liquid contained in a clarifier

Examples

Experimental program
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Effect test

Embodiment Construction

[0053] exist figure 1 and 2 , one end of the decanter 2 is pivotally held on a pivot bearing 3 in the clarifier 1 . The decanter 2 has a pipe 4 extending from the pivot bearing 3, and a decanter head 5 provided at the other end of the pipe 4 and extending perpendicular thereto. On the underside of the decanter head 5 facing the bottom B of the clarifier 1 there is a slit-shaped water inlet 6 . Reference numeral 7 denotes a winch on which a cable 8 connected to the decanter head 5 is taken up. The reference L designates the length of the actuator of the cable 8 . The length L describes the corresponding distance between the decanter head 5 and the pivoting device or capstan 7 .

[0054] Reference numeral 9 denotes a first measuring device for measuring the filling level H1 of the waste water Ab contained in the clarifier 1 . The first measuring device may be an ultrasonic or radar measuring device. The distance between the water inlet 6 and the bottom B is indicated by re...

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PUM

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Abstract

A device for decanting a supernatant includes a decanter which is pivotally attached to a clarifier and which includes a decanter head that has a water inlet opening, a pivoting device which is connected to the decanter via an actuator with an adjustable length for raising and lowering the water inlet opening relative to a floor of the clarifier, a first measuring device for measuring a fill level of the wastewater received in the clarifier, a device for determining a length of the actuator, an evaluating device with which a distance of the water inlet opening of the decanter to the floor of the clarifier can be determined from the length of the actuator, and a controller for controlling the pivoting device such that a water inlet opening immersion depth, which results from the difference between the fill level and the distance, is kept in a specified range.

Description

technical field [0001] The invention relates to a device for decanting a supernatant liquid contained in a clarifier. Background technique [0002] Such a device is known, for example, from WO2008 / 014856. [0003] It is also generally known from the prior art to connect a hydrostatic sensor to a decanter head. The hydrostatic sensor is connected via a cable to a controller located outside the clarifier. According to the signal transmitted from the hydrostatic sensor, the motor for driving the cable winch is controlled by the controller so that the immersion depth of the water inlet provided on the decanter head is maintained within a predetermined range. [0004] In practice, the hydrostatic sensor sometimes fails, or the cable provided between the hydrostatic sensor and the controller is sometimes damaged. In the event of a damaged cable, this could also cause damage to the controller. Contents of the invention [0005] The object of the invention is to overcome the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D21/24B01D21/34C02F1/00
CPCB01D21/34B01D21/2405B01D21/2444C02F2001/007G05D9/12Y02W10/10B01D21/24C02F1/00Y02P10/20
Inventor 马库斯·赫夫肯
Owner INVENT UMWELT & VERFAHRENSTECHNIK AG
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